Temperature dependent Raman spectra of CsCdBr3 and CsCdCl3 crystals

Demirbilek, R.; Feile, R.; Bozdoğan, A. Çelik

doi:10.1016/j.jlumin.2015.01.024

Cited by 21 publications

(18 citation statements)

References 25 publications

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“…There are two modes of peaks, namely, E 2g and A 1g , among which 220.95, 111.96, and 92.89 cm −1 peaks are of A 1 g modes and 253.48 and 146.60 cm −1 peaks are of E 2g modes. 66,67 It was found that the peak position did not change after doping with Sb. In which the 220.95 cm −1 peak may be the overtone of the 111.96 cm −1 peak, indicating the electron−phonon coupling in the anharmonic A 1g mode.…”

Section: Resultsmentioning

confidence: 99%

Efficient Yellow Self-Trapped Exciton Emission in Sb³⁺-Doped RbCdCl₃ Metal Halides

et al. 2022

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Metal halide perovskites have flexible crystal and electronic structures and adjustable emission characteristics, which have very broad applications in the optoelectronic field. Among them, all-inorganic perovskites have attracted more attention than others in recent years because of their characteristics of large diffusion length, high luminescence efficiency, and good stability. In this work, Sb 3+ -doped RbCdCl 3 crystalline powder was synthesized by a simple hydrothermal method, and its luminescence properties were studied, which showed a broad emission band with a large Stokes shift and efficient yellow light emission at about 596 nm at room temperature with a photoluminescence quantum yield of 91.7%. The emission came from the transition of the selftrapped exciton 1 (STE1) out of 3 P n (n = 0, 1, and 2) to S 0 due to strong electron−phonon coupling, which scaled with increasing temperature. Moreover, its emission color became white at low temperatures due to the occurrence of transition of other self-trapped exciton 0 (STE0) state emission out of the 1 S states of Sb ions to S 0 in the lattice. These emission color changes may be used for temperature sensing, and this Sb 3+ -doped RbCdCl 3 material expands the knowledge of the efficient luminescent inorganic material family for further applications of allinorganic perovskites.

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Section: Resultsmentioning

confidence: 99%

Efficient Yellow Self-Trapped Exciton Emission in Sb³⁺-Doped RbCdCl₃ Metal Halides

et al. 2022

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“…There are two E 2g modes, 70 and 102 cm –1 . The 156 cm –1 peak is A 1g mode, which is the breathing of [CdBr 6 ] 4– -octahedron . We defined that the peak at 156 cm –1 is the A 1g LO phonon mode of 13%Mn:CsCdBr 3 ; therefore, the S and ℏω phonon of Mn-doped CsCdBr 3 are 11 and 21 meV, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The 156 cm −1 peak is A 1g mode, which is the breathing of [CdBr 6 ] 4−octahedron. 35 We defined that the peak at 156 cm −1 is the A 1g LO phonon mode of 13%Mn:CsCdBr 3 ; therefore, the S and ℏω phonon of Mn-doped CsCdBr 3 are 11 and 21 meV, respectively. The size of the Huang−Rhys factor S represents the existence of STE.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The quasi-one-dimensional properties are very similar to [MnCl 6 ] 4– octahedra. , This specific structure is very suitable for the study of magnetic properties if the Cd ions have been replaced by TM ions with d electrons. Previously, some research studies on CsCdBr 3 have focused on its temperature-dependent Raman spectra, but there are few studies on their PL emission characteristics in the visible region, so this study is a meaningful and necessary supplement in this respect. DMSs are extremely important in spintronic and magnetoelectric devices, especially for doping FM ions into CsCdBr 3 lattice to form DMS, which may bring up novel magneto-optical and magnetic transport properties, that is a subject that deserves to be studied.…”

Section: Introductionmentioning

confidence: 99%

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Polaronic Magnetic Excitons and Photoluminescence in Mn²⁺-Doped CsCdBr₃ Metal Halides

Jia

Wei

et al. 2021

J. Phys. Chem. C

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All-inorganic metal halide materials are eye-catching because of their interesting and excellent optoelectronic properties. In this report, a series of Mn 2+ -doped CscdBr 3 perovskite materials were synthesized by grinding in a mortar. The strong photoluminescence (PL) emission band at 650 nm and its PLQY reaches 54.42% after doping with modest Mn 2+ . The enhanced PL emission is the result of a weak ferromagnetic coupling of Mn−Mn pair to form a magnetic polaron and self-trapped exciton (STE), and the energy transfer from the d−d transition of a single Mn to STE and Mn−Mn pair level is very effective. The doping also enhances the nonlinear optical response of the material by their laser excitations. The photophysical mechanism of Mn-doped CsCdBr 3 has been discussed, and the specific conversion process from the bandedge to each charge state has been analyzed in detail. This kind of material may have significant applications in spintronic or optoelectronic devices.

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“…The linear chains of slightly deformed CdBr 6 4octahedra are connected through the Cs + ions. 6 With such an interesting structure, CsCdBr 3 doped with rare-earth ions [7][8][9][10][11][12][13][14][15] is intensively studied as a promising high-efficiency converter of semiconductor laser radiation. 16,17 At room temperature, CsCdBr 3 has the space group P6 3 /mmc.…”

Section: Introductionmentioning

confidence: 99%

¹¹³Cd and¹³³Cs NMR Study of Nucleus-Phonon Interactions in Linear-Chain Perovskite-Type CsCdBr₃

Lim¹

2016

Journal of the Korean Magnetic Resonance Society

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Resonance frequencies from the 113 Cd and 133 Cs nuclear magnetic resonance (NMR) spectra for the CsCdBr 3 single crystal were measured at varying temperatures by the static NMR method. The temperature-dependent changes of these frequencies are related to the changing structural geometry of the CdBr 6 4units, which affects the environment of 133 Cs.The spin-lattice relaxation rates (1/T 1 ) for the 113 Cd and 133 Cs nuclei were measured in order to obtain detailed information about the dynamics of CsCdBr 3 crystals. The dominant relaxation mechanisms for 113 Cd and 133 Cs nuclei are direct single-phonon and Raman spin-phonon processes, respectively.

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Temperature dependent Raman spectra of CsCdBr3 and CsCdCl3 crystals

Cited by 21 publications

References 25 publications

Efficient Yellow Self-Trapped Exciton Emission in Sb³⁺-Doped RbCdCl₃ Metal Halides

Efficient Yellow Self-Trapped Exciton Emission in Sb³⁺-Doped RbCdCl₃ Metal Halides

Polaronic Magnetic Excitons and Photoluminescence in Mn²⁺-Doped CsCdBr₃ Metal Halides

¹¹³Cd and¹³³Cs NMR Study of Nucleus-Phonon Interactions in Linear-Chain Perovskite-Type CsCdBr₃

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Temperature dependent Raman spectra of CsCdBr3 and CsCdCl3 crystals

Cited by 21 publications

References 25 publications

Efficient Yellow Self-Trapped Exciton Emission in Sb3+-Doped RbCdCl3 Metal Halides

Efficient Yellow Self-Trapped Exciton Emission in Sb3+-Doped RbCdCl3 Metal Halides

Polaronic Magnetic Excitons and Photoluminescence in Mn2+-Doped CsCdBr3 Metal Halides

113Cd and133Cs NMR Study of Nucleus-Phonon Interactions in Linear-Chain Perovskite-Type CsCdBr3

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Efficient Yellow Self-Trapped Exciton Emission in Sb³⁺-Doped RbCdCl₃ Metal Halides

Efficient Yellow Self-Trapped Exciton Emission in Sb³⁺-Doped RbCdCl₃ Metal Halides

Polaronic Magnetic Excitons and Photoluminescence in Mn²⁺-Doped CsCdBr₃ Metal Halides

¹¹³Cd and¹³³Cs NMR Study of Nucleus-Phonon Interactions in Linear-Chain Perovskite-Type CsCdBr₃